1·Business decisions are often made with many unknow and unknowable factors, which would even puzzle the best poker players.
商业决策通常是由许多未知和不可知的因素做出来的，这些因素甚至会让最优秀的扑克玩家感到困惑。
2·The specific impact of the greenhouse effect is unknowable.
温室效应的具体影响尚不可知。
—— 《柯林斯英汉双解大词典》
3·The price tag for all this is unknowable.
所有这一切的价格标签是不可知的。
4·I don't think he meant that science is full of unpredictable or unknowable or supernatural forces.
我认为他并不是说科学是不可预测的、不可知的，或是超乎自然的力量。
5·It will make the mental aspects of our lives mysterious and unknowable.
这也会使我们的精神生活变得神秘及不可知。